光温敏核不育系的育性观察

通过分期播种试验 ,对培矮 6 4 S、890 2 S、H6 S、H7S四个籼型光温敏核不育系进行柱头外露率、开花习性、农艺性状的观察。结果表明 :培矮 6 4 S、H6 S、H7S三个不育系在不育期内的育性稳定、可育期内不育系具备较高的结实率 ,而 890 2 S尚有波动 ;柱头外露率以培矮 6 4 S最高 ,其次分别为 H6 S、H7S、890 2 S;四个不育系花时也较为集中 ,多在 12 :0 0左右 ,且农艺性状均比较稳定

Breeding observation of photo-thermo sensitive sterile line

we have experienced with the long grained nonglutinous photo thermo sensitive sterile line of four peiai 64s, 8902s, H 6S,H 7S and observed respectirely the rate of uncovered stigona, the habits of blossom and the characterstics of agronom. The results show that: Pei ai 64S, H 6Sand H 7S are steady during the period of unbreeding and they hare high rate of fruit during the period of breeding otherwise, 8902S not the same. According to the rate of uncovered stigma, Pei ai 64S is the highest, H 6S, H 7S and 8902S are the left order. The habits of blossom of the four are concentrated at 12 o clock. And the four characteristis of agronom are compratirely steady.